3751145
Hexagon Head Set Screw
Cummins®

The Hexagon Head Set Screw, part number 3751145, manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. Cummins, a well-established name in the automotive and heavy-duty truck industry, produces this set screw to meet the rigorous demands of truck operations. This component plays a role in ensuring the secure fastening of various parts within truck assemblies, contributing to the overall reliability and performance of commercial vehicles.

Basic Concepts of Hexagon Head Set Screws

A Hexagon Head Set Screw is a type of fastener characterized by its hexagonal head, which allows for easy tightening and loosening using a hex key. The design of the set screw enables it to be driven into a part to create friction, thereby securing it in place without the need for a nut. Set screws are commonly used in mechanical assemblies to hold components such as gears, pulleys, and shafts in position. Their ability to provide a strong, vibration-resistant hold makes them invaluable in applications where parts must remain firmly in place under dynamic conditions ¹.

Purpose of the 3751145 Hexagon Head Set Screw in Truck Operations

This Cummins part is specifically designed to play a role in the secure fastening of various components within commercial trucks. It is commonly used in applications where parts need to be held firmly in place, such as securing bearings within housings, attaching brackets, or fastening components to shafts. Its design ensures that these parts remain securely in place, even under the vibrations and stresses encountered during truck operations ².

Key Features

The 3751145 Hexagon Head Set Screw boasts several key features that enhance its performance and durability. It is made from high-quality materials, typically alloy steel, which provides excellent strength and resistance to wear. The screw features a coarse thread type, which allows for quick and secure fastening. Additionally, its hexagonal head design facilitates easy installation and removal using a hex key, ensuring convenience during maintenance procedures.

Benefits

Using this Cummins part offers several benefits. Its design provides improved security in fastening, ensuring that components remain firmly in place under dynamic conditions. The material composition and thread type contribute to its resistance to vibration, reducing the likelihood of loosening over time. Furthermore, the ease of installation and removal using a hex key simplifies maintenance tasks, allowing for efficient and hassle-free servicing of truck components.

Installation Guidelines

Proper installation of the 3751145 Hexagon Head Set Screw is crucial to ensure optimal performance. To install the screw, first, ensure that the mating surfaces are clean and free of debris. Use a hex key to drive the screw into the component until it achieves the desired level of tightness. It is important to follow torque specifications provided by the manufacturer to avoid over-tightening, which can damage the screw or the component. Additionally, periodically check the tightness of the screw during operation to ensure it remains secure.

Troubleshooting and Maintenance

Common issues associated with Hexagon Head Set Screws include loosening due to vibration and wear over time. To troubleshoot these issues, regularly inspect the screws during maintenance checks. If a screw appears loose, tighten it to the specified torque using a hex key. In cases where wear is evident, consider replacing the screw to maintain the integrity of the fastening. Proper maintenance, including regular inspection and tightening, will help prolong the lifespan of the screw and ensure continued reliable performance.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history dating back to 1919, Cummins has established a strong reputation for quality and innovation in the commercial truck industry. The company’s extensive product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial vehicles. Cummins’ commitment to quality is evident in its rigorous testing and quality control processes, ensuring that its products deliver reliable performance and durability in real-world applications.

Cummins Hexagon Head Set Screw 3751145 Compatibility with Engine Models

The Cummins Hexagon Head Set Screw, part number 3751145, is a critical component in various engine configurations. This screw is designed to provide secure fastening in applications where high torque and stability are essential. Below is a detailed description of its compatibility with specific Cummins engine models.

K19 and K38 Engines

The K19 and K38 engines, both part of the Cummins K Series, are medium-duty diesel engines known for their reliability and performance. The Hexagon Head Set Screw 3751145 is utilized in these engines to secure various components, ensuring that parts remain tightly fastened under operational stresses. This screw is particularly useful in applications where vibration and movement are common, providing a dependable fastening solution.

N14 G Engine

The N14 G engine, a high-performance, heavy-duty diesel engine, also incorporates the Hexagon Head Set Screw 3751145. This engine is widely used in various industries, including construction and transportation, where durability and power are paramount. The screw’s design allows it to maintain its fastening integrity in the demanding conditions of the N14 G engine, contributing to the overall reliability and longevity of the engine components.

V28 Engine

The V28 engine, another robust Cummins engine, benefits from the use of the Hexagon Head Set Screw 3751145. This engine is known for its high torque output and efficiency, making it suitable for heavy-duty applications. The screw’s hexagonal head provides a larger surface area for tools, facilitating easier and more secure fastening. This is particularly important in the V28 engine, where precise and reliable fastening is crucial for maintaining performance and safety.

Grouping of Engines

The engines mentioned—K19, K38, N14 G, and V28—are all part of Cummins’ extensive lineup of diesel engines. While each engine has its unique characteristics and applications, the Hexagon Head Set Screw 3751145 serves as a common fastening solution across these models. This commonality underscores the versatility and reliability of the screw in various engine environments.

Role of Part 3751145 Hexagon Head Set Screw in Engine Components

The part 3751145 Hexagon Head Set Screw is instrumental in securing various components within engine systems, ensuring stability and proper function. In the 4LGK Supercore, this screw is utilized to fasten the supercore assembly, maintaining the integrity of the core structure.

When dealing with an Aftermarket Turbocharger, the Hexagon Head Set Screw is often employed in the turbocharger and mounting system to ensure the turbocharger is securely attached to the engine, preventing any movement that could lead to performance issues or damage.

In the Center Housing Rotor Assembly, this screw plays a part in securing the rotor within the housing, which is essential for the balanced rotation required for efficient turbocharging.

For the Core and Housing Assembly, the screw is used to fasten the core assembly to the housing, ensuring that all components remain aligned and function as intended.

In the context of the Core Assembly T04B, the Hexagon Head Set Screw is critical for securing the core components, which are vital for the turbocharger’s performance.

Within the Liner Pack, this screw is used to secure the liners in place, ensuring they do not shift during operation, which could affect the engine’s sealing and performance.

In an Overhaul Kit, the screw is often included to reassemble components after maintenance, ensuring that all parts are correctly and securely fastened.

For the Performance Parts, the Hexagon Head Set Screw is used to secure enhancements or modifications, ensuring they are firmly in place and function as designed.

In the Supercore Assembly 4LGK, this screw is essential for maintaining the structural integrity of the assembly, ensuring that all parts work in unison.

When installing a Turbocharger (no HSG, TRB), the screw is used to secure various components, ensuring that the turbocharger is correctly mounted and operates efficiently.

In the Turbocharger and Connection, the screw is utilized to secure the connection points, ensuring a stable and leak-free setup.

For the Turbocharger and Connection Assembly, this screw is vital for securing the assembly components, ensuring they remain in place during operation.

In the Turbocharger and Mounting system, the Hexagon Head Set Screw is used to ensure the turbocharger is securely mounted to the engine, preventing any unwanted movement.

In a Turbocharger Conversion Kit, the screw is used to secure new components, ensuring a smooth transition and integration with the existing engine system.

Finally, in a Turbocharger Kit, the Hexagon Head Set Screw is often included to secure various components within the kit, ensuring they are correctly installed and function as intended.

Conclusion

The 3751145 Hexagon Head Set Screw by Cummins is a vital component in the maintenance and operation of commercial trucks and diesel engines. Its design, material composition, and compatibility with various Cummins engine models make it an indispensable part in ensuring the secure fastening of components under dynamic conditions. Proper installation, regular maintenance, and understanding its role in engine components are crucial for maximizing the performance and reliability of truck and engine systems.